Dr Brown's Options Wide-Neck PESU Bottle can be used with or without the vent system. The new vent system is designed to grow with baby, and we recommend using this system to experience all the health benefits of our bottle. It helps reduce feeding problems, helps digestion and helps preserve vitamins. Some moms and dads find removing the vent a convenient option as their baby's feeding becomes more developed.

Helps reduce feeding problems: Reducing colic, spit-up, burping and gasProven to help preserve bottle milk nutrients*: Vitamins C, A, and E are critical for health in infancyVacuum-free feeding helps digestion: Good digestion is essential for babies, particularly newbornsFully-vented bottle design: Closest to breastfeedingInternal vent system and silicone nipple work together: Controlled flow so babies feed at their own paceMade in the USA